Change the background image of the BODY-Tag. A pool of images from Media Library and / or a NextGEN gallery can be used.
This Plugin adds colored stripes width random colors and smooth color transitions to the background of your website.
This plugin allows you to select multiple backgrounds, and display one each page.
Random background image every visitor session, page refresh, or timed slideshow interval. Choose between fixed full screen or scrolling background.
This WordPress plugin is no longer supported and has been replaced by/renamed to the "Better Backgrounds" plugin.
Control your wordpress site's background. With built in uploading of images.